Lamp construction



y 1930- H. c. FOSTER 59,

LAMP CONSTRUCTION Filed June 25. 1928 Patented July 1, i930 2 1,769,426

HARRY o. rosrnn, or connnnsvrnrn, insti utes-serene TOVINDIANALAMPCORPORATION, or CON'NEBSVILLE, INDIANA LAMP CONSTRUCTION", p I

Application filed June 25, was." eel-a1 No. 288,163.

This invention relatesv to a lamp structure 1 door rim while at the sametime forcing the particularly adapted for use in connectiondoorrimandreflectortogether for clamping with automobile lamps or thelike. 7 and'sealingthe lens and gasket therebetween.

The principal object of the invention is to V The clamping bar, 17 ,isprovided with a provide a lamp structure which will be ecoscrew threadedaperture indicated at 20 into nomical in construction and assembly,while which the screw 21 extends, said screw havpermitting of convenientaccess to the ining a head22 engaging a suitable recess terior of thelamp for replacement or adformed in'the back of the casinglO. Uponjustment of the bulb without requiring the screwing the screw 21 intothe bar, the bar 10 disassembly of the lens, reflector, door rim isdrawntoward theback of the casing so and sealing gasket. This is ofgreat adas to cause the'door rim 12to be drawn therevantage to the userof the lamp inasmuch as on. and secured in closed position.

; difficulty is usually had with the disassembly Thebulb 15 is providedwith the usual and assembly of these various parts merely base insertedina socket 23 which is mounted 15 to give access to the bulb, in asleeve24 fixedly secured to the bottom of By means of this construction thelens, re the casing-so as to extend forwardly and upflector and doorrim, as well as the sealing wardly at an angle thereto. A suitableapergasket, are securely held together as a' unit, ture 25 is formed inthe lower part of the re- Which unit may be readily removed to permit vflector which is just large enough to permit 7 20 the bulb containedwithin the casing to be the bulb 15 to pass therethrough when the 7replaced or adjusted. This is accomplished unit including the reflectoris mountedin by providing a clamping bar which embraces place. 7 thereflector and clamps the reflector, door The reflector, door rim andlens are serim and sealing gasket together under spring cured and heldtogether as a unit by clamp- 25 tension, which clamping bar is removablying the clamping bar 17 in position. The secured direct to the casingfor holding the bulb is mounted in the casing in proper adunit therein.justed position. The reflector unit is then The full nature of. theinvention will be positioned within the casing by causing the understoodfrom the accompanying draw-- bulb to pass through the aperture 25, where30 ings and the following description and upon the clamping bar 17 isengaged by the claims: screw 21 and screwed into position.

Fig. 1 is a central vertical section through vVherein the invention isherein illustrated the lamp. Fig. 2 is a section taken on the asrelating to a side lamp construction, havline 22 thereof. Fig. 3 is arear elevation ing the bulb extending up from the lower of the unitremoved from the casing. portion thereof, it will be readily understoodIn the drawings there is shown a lamp that it is also applicable to headlights, wherehaving a casing 10, reflector 11, door rim 12, in the bulbextends forwardly'through the lens 13, sealing gasket 14 and bulb 15.The center of the reflector. The opening 25 in lens with the sealinggasket is mounted withthe reflector is not ofsuch'a character as to 40in. an outwardly extending flange 16 formed to detract from thereflector surface for prac about the periphery of the reflector. Theytical purposes. The light rays emanating are held in place as a singleunit by the clampfrom the bulb which strike that portion of ing bar 17which embraces the reflector, as the reflector would be obstructed bythe bulb shown in Fig. 2. Said clamping bar is itself under ordinaryconditions and the 45 formed with outwardly turned ends 18 which openingis not much larger than the area usuhook into the door rim. Securedadjacent ally taken up by the lamp socket.

thereto there are spring arms 19 which bear The invention claimed is;

against the reflector under spring tension. 1. In an electric lamp, thecombination of The tension of the spring arms 19 act to hold a casing, alamp bulb supported by and with the hooks 18 in interlocking positionwith the in said casing, a reflector member, a lens -member, a door rimmember, aclaniping'bar embracing said reflector and extending about therear thereof having its free ends engaging said door rim, a springsecured to said bar for engaging the reflector. and forcing it underspring tension against, saidrim Wherei by said lens-Will beciampedfbetweensaid reflector andrim,,and means for removahly. esecuring said bar to the casing for removab1yhoi'din'g the membersclamped thereby in position relative to said casing, said reflectorhaving'an opening therein to'permit passage 7 of the bulb therethroughin the'positioning V and-removal of said members-Without 'distnrbingtherelation of said bulb and casing.

2. In l an electric lamp; the: combination of a casing a lam-p'bulbsupported by and Within saidcasing; a reflector member; {11811811516111-berg'a doorr-i'm member; -a clamping barem- 2b "bracing" said reflectorand 1 extending 3 about i the rear thereof having its free ends engagvin'g' said-door rim, a 'spring secured to said H ar adjacent-each ofthefree ends thereof 7 ion-engaging the reflector and forcing it im-"-derspringHtension againstsaid rim whereby -sa id lenswill be clampedbetween s'aid re-- I flector "and i-n1, and means for r-elnovablysecuring saidba-r to the casing for 'remevably g {h the-members cianlpe'd therebyin po-- eosi n 'rela trvefto said casing, -s-a1-d reflectorhaving an opening therein to permit; passage oftjhe bulb thereflhro-ughinthe positioning l I and removal of said members wi t houtdi-s H tunb-ing the relationbf said bulb' aind eas i'ng. l In Witness Whe'r-eof,I- haVe hereunto afiixed mysignature.

HARRY 'ojrosrnn.

Lat :1

@3 2 a. a r e a i 1 1,769,426 7

